So we all know about Flint. Lead in the water. Sick children. The greed, and the blind eye. So let's take that problem and seek out solutions. One way solution I can think of is to 'democratize' accurate water testing. Sure, you can go buy lead water test kits at Walmart that use test strips, but genuine photometer-based tests can be prohibitively expensive.
So let's learn how the expensive tests are done, how those devices work, and see if we can do it on a much less expensive scale using off-the hardware, and maybe...just maybe...those test strips.